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Title:
PRODUCTION OF CARBON FIBER-REINFORCED COMPOSITE MATERIAL
Document Type and Number:
Japanese Patent JPH01118655
Kind Code:
A
Abstract:

PURPOSE: To prevent breakage of needle and separation loss of carbon fiber by punching a nonwoven fabric containing a carbon fiber by plural specific needles.

CONSTITUTION: A nonwoven fabric laminated by using a punching apparatus implanted with a great number of needles having substantially the same hardness and modulus of elasticity as those of carbon fiber and the maximum diameter A of 15-2,000 times as large as that of the carbon fiber is subjected to needle punching in the thickness direction many times. The peripheral faces of blades 1 are provided with plural barbs 2 projecting from the peripheral faces outward, the barbs 2 are slightly inclined from the blades 1 toward tip end sides and recessed parts in which fibers are taken are formed between the barbs 2 and the peripheral faces of the blades 1.


Inventors:
Sugino, Morihiko
Inoue, Yoshio
Shinjo, Ietsugu
Application Number:
JP1987000277017
Publication Date:
May 11, 1989
Filing Date:
October 31, 1987
Export Citation:
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Assignee:
KOBE STEEL LTD
JAPAN VILENE CO LTD
International Classes:
C04B35/83; C04B35/52; D04H1/4242; D04H1/46; D04H18/00; D04H18/02; (IPC1-7): C04B35/52; D04H1/46
Domestic Patent References:
JPS62124911U1987-08-08